﻿using System;
using System.Collections.Generic;
using System.Data;
using System.Data.SqlClient;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace WindowsFormsApp1
{
     public class DBhelp
    {

        public static readonly string conString =("server=LAPTOP-GA1ULHJL;database=Schools;uid = sa ; pwd = 123456;");

        public static DataTable GetDataTable(string sql) 
        {
            SqlConnection connection = new SqlConnection(conString);

            SqlDataAdapter adapter = new SqlDataAdapter(sql, connection);

            connection.Open();

            DataTable dt = new DataTable();

            adapter.Fill(dt);

            return dt;
        }

        public static int AddOrUpdate(string sql)
        {
            SqlConnection connection = new SqlConnection(conString);

            SqlCommand command = new SqlCommand(sql, connection);

            connection.Open();

            return command.ExecuteNonQuery();
        }


    }
}
